Respuesta :
Answer:
10.26 bags
Step-by-step explanation:
Area of circle :
A = πr²
radius, r = 7ft
A = π * 7²
A = π * 49
A = 153.93804 ft²
Since a bag covers 15 ft² ;
Number of bags needed will be :
Area / number of square feet per bag
153.93804 ft² / 15 ft²
= 10.262536 bags
= 10.26 bags